Bellows for pneumatic leaf-turners.



l. C. HOLCOM. BELLOWS FOR PNEUMATIC LEAF TURNERS'. y

Ratented Feb. 20,1917.

APPLICATION ILED JAN-26@ 1916.

JARRET C. ironooivr, orsULPi-Iun Y`sriaiives, Taxes.

isnnnowsronrivnuiirn'rio, YLEAF-Tuii'ivnns. l 1,216,693. Y l'Specification of Letters Patent- Patented FelLZO, 1917. Originalapplication filed September 22, 1915, Serial 190.751,916. Divided andthivsapplication led January yze, 191s. seria1No.74,as2. e e

To all 'wiwm t may concern: Y upturned portions 12 of the respective Beit known that I, JARRET'C. HoLooM, `a pedals. 'Each hoseV or'tube 7 vhasits lower citizen of the United States, residin at Sulvend fitted to aninlet tube'20 inthe rear wall phur Springs, in the county of Hop 'ns andof the bellowsand, in the front wall of the State of Texas, haveinvented certain new bellows, I VVprovide yan outletj opening 2l eo anduseful Improvements in Bellows for which is normally covered'by a valve22 piv- Pneumatic Leaf-Turners, of which the folotally secured upon thewall of thebellows lowing isa specification. l and held normally in aclosed position by a This invention relates tov b ellows for spriiig'23.secured to the bellows wall-and operating leaf-turners and consists incerbearingupon theV valve, as shownV clearly in e5Y tain novel featureshereinafter described' Fig. 1. 'Itwill be readily understood that andclaimed, the present application being these valves open away from thebellows and a division of an application filed by me Sepwhen eitherpedal 4 is depressed, the prestember 22, 1915, Serial N o. 51,916. sureexerted through the upturned branch The invention is illustrated in theaccomthereof upon the bracket 17 against the ten- 7o. panying drawingsin which` sion of the springV 18, will swing the forl Figure 1 is adetail perspective view of ward wall of the bellows toward the panel thebellows; .10, therebyexpanding the bellows and creat- Fig. 2 is avertical section of the same; ing a suction through the hose or tube 7.

Fig. 8 is a detail perspective view of a When the pedal is released, thesprings 13 75 portion of the mechanism. and 18 at once expand and returnthe parts The invention relates particularly to the to the initial ornormal position so that theA primary actuating members of Y apparatusbellows will be closed, the air then inthe bell for pneumaticallyturning the leaves or lows overcoming the force ofthe spring 23V 25sheets of a musical composition. se that the valve 22 willl be openedand the 8o In applying the apparatus to a piano, I air will escape. Theair i'inds its way` from secure to the back or inner side of the pianothe housing 5 through the opening around desk, a housing in'which themechanism actthe pedal, as will be readily understood. i ing directlyupon the sheets of music is con- T e upper end of each tube 7 Visoperatained. I also mount in the piano case, near .tively connected witha pneumatic motorV 85 the usual pedals, a pair of pedals which Y (notshownlwithin the housing carried by are intended to be actuated bytheperformer the piano desk or music stand. These mo-V f to operate theleaf-turning arms.V Alhoustors are disposed at opposite sides of a seing5 is secured to the inner side of the piano ries of leaf-turning armsand act on said casing and this housing contains a pair of arms throughintermediateA devices so thatV 90 bellows 6 from which liexibleconductors or one motor will swing the arms inone direce pipes 7 extendto the top of theupper iirsttion and the other motor will swing' thearms mentioned housing.` The pedals 4 are fulin the other direction. Theleafturning crumed between lugs or ears 9 secured to the arms areprovided with .jaws which A'clamp forward wallof the respective bellows6 and the several leaves so that each arm. carries 95,/

the pedals project forwardly through open- .one leaf.- y I f v ings inthe piano case below,V the panelV 10, The performer depresses the rightpedal Wear plates 11 bei'ngprovded around said 4 at the conclusion ofeach Ypage ofthe c omopenings to impart* a neat finish thereto.position' Yand thereby. successively swings Between the upturnedportions 12 ofV the the leaf-carrying arms from theY right side leopedals and the panel 10, I provide coiledl of themusic stand tothe leftside'thereof. springs 13 eachhaving one terminal 14 bearj After-theperformance 1S nished, theY Vleft 1 ing against the upturned portionofthe ad-VV pedal will be depressed 'so as: tocarry the jacent pedal andits otherterminal 15 fitted*V leaves or sheets successively back totheini-1 in a sleeve or keeper 16 which is secured to. tial position.l.When the pedal'isdepressed, 195

the panel 10,'as clearly shown. in Fig. et. the bellows connectedtherewith will be ex- The coils of these springsare disposed belowpandediso Yas tocreate asuction through the brackets 17 secured-'uponthe forward walls ,pneumatic motor which is in communication of thebellows and containing coiled springs Vtherewith' and, consequently,`the movable 5 18 which bear upon the extremities of the side ofthe motorlwill be swung toward the y'1V-19 fixed 'side thereof and a pullexertedupon the foremost leaf-turning arri so as to swing the same out from themusic stand or the piano desk and then around to the left.

"When it is desired to return the sheets to their initial position, theleft pedal is manipulated to actuate the motor connected therewith andthereby swing the leaf-turning arms successively to the right.

Having thus described the invention, what is claimed as new is:

l. In an apparatus for the purpose set forth, the combination o `abellows, a support for the saine, a pedalpivoted upon the bellows andconnected therewith to actuate the same, and means acting on the pedalto yieldably hold the bellows in a collapsed condition.

2. ln a leaf turninglapparatus, the combi- Copes of this patentlmaybeobtained for nation of a support,

lows mounted therein,

-within'- said bracket and a bellows mounted therein, a pedal,yield-able connections between the pedal and the bellows, and means onthe support and bearing on the pedal to yieldably vhold the bellows in acollapsed condition.

3. The-combination or'. a support, a bela pedal mounted within thesupport and projecting through the same and provided with an upstandingarm bearing upon the bellows, a bracket secured upon the bellows, a coilspring itted bearing upon the upstanding portion of the pedal, and aspringsecured t the support vand bearing upon :said bracket.

'.Intestimony whereof I aiix my signature.

JARRET. C. HOLCOM. [1.. s]

ive-.cents eachfby addressngthe Commissioner of Patents,4vashingizom2D.C.

